Wastewater Improvements, Backbone State Park, Delaware County

The Iowa Department of Natural Resources is seeking bids for wastewater improvements at Backbone State Park in Delaware County. The project involves removing and replacing the existing septic tank and sand filter treatment system, installing UV disinfection, removing and replacing a lift station and valve vault, and improving the lagoon treatment system with piping modifications, sampling manholes, and tablet chemical treatment equipment. • The project documents, including plans, specifications, proposal forms, and addenda, are available at Beeline and Blue, 2507 Ingersoll Ave, Des Moines, IA 50312. • Direct substitution requests, questions about the project, or questions concerning bidding and contract procedures should be emailed to [email protected] by 4:30pm the Friday prior to bid letting. • The bid closing date and time is 5/21/2026 at 11:00 AM CST.